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/*
* thread-pool.h
*
* A thread pool implementation
*
* (c) 2006-2010 Thomas White <taw@physics.org>
*
* Part of CrystFEL - crystallography with a FEL
*
*/
#ifndef THREAD_POOL_H
#define THREAD_POOL_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pthread.h>
extern pthread_mutex_t stderr_lock;
extern signed int get_status_label(void);
/* work() will be called with a number and work_args. The number will be
* unique and in the range 0..n_tasks. A progress bar will be shown using
* "text" and the progress through the tasks, unless "text" is NULL. */
extern void run_thread_range(int n_tasks, int n_threads, const char *text,
void (*work)(int, void *), void *work_args);
/* get_task() will be called every time a worker is idle. It returns either
* NULL, indicating that no further work is available, or a pointer which will
* be passed to work(). Work will stop after 'max' tasks have been processed.
* final() will be called once per image, and will be given both queue_args
* and the last task pointer.
* get_task() and final() do NOT need to be re-entrant.
* If "max" is zero, all tasks will be processed.
* Returns: the number of tasks processed. */
extern int run_threads(int n_threads, void (*work)(void *, int),
void *(*get_task)(void *), void (*final)(void *, void *),
void *queue_args, int max);
#endif /* THREAD_POOL_H */
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